
1) Orthorhombic mineral 2) Phosphate mineral
Found on
https://www.crosswordclues.com/clue/hopeite

Hopeite is a hydrated zinc phosphate with formula: Zn3(PO4)2·4H2O. It is a rare mineral used mainly as a collectors specimen. Hopeite crystallizes in the orthorhombic system with prismatic, vitreous white to yellow crystals. It also forms druzy encrustations and reniform (kidney-shaped) masses. The related mineral parahopeite, which has the same ...
Found on
http://en.wikipedia.org/wiki/Hopeite

• (n.) A hydrous phosphate of zinc in transparent prismatic crystals.
Found on
http://thinkexist.com/dictionary/meaning/hopeite/
Hope'ite noun [ Named after Professor
Hope , of Edinburgh.]
(Min.) A hydrous phosphate of zinc in transparent prismatic crystals.
Found on
http://www.encyclo.co.uk/webster/H/60

Hopeite, named after Professor Hope, of Edinburgh, is a hydrous phosphate of zinc occurring in transparent prismatic crystals.
Found on
http://www.probertencyclopaedia.com/browse/HH.HTM
(Hydrated Zinc Phosphate) Hopeite is a rare phosphate mineral but is popular among collectors of rare minerals. It forms typically well shaped crystals that are often associated with colorful minerals like lazulite , another phosphate mineral. Hopeite is dimorphous with the mineral parahopeite . The two have the exact sam...
Found on
https://www.encyclo.co.uk/local/23719
No exact match found.